Here is your long shot suggestion verbalized :)....."Google will eventually build self-driving trucks once all objectives of their self-driving car project ( https://www.google.com/selfdrivingcar/ )are accomplished. Easy to imagine that for the their recently launched fresh food delivery service in the Los aAngeles and san Francisco area( https://www.engadget.com/2016/02/17/google-express-groceries/ ) they soon build some prototype refrigerated truck Bodies or dry freight cargo Bodies just like the car-testing fleet (which includes both modified Lexus SUVs and new Southern California area other than SVTE build these?"